From my experiance with the P. Nigrolineatus they can take a fairly large range of tank mates. I personally have had them with Oscars. I have also had them in tanks of purely their own kind and had no problems. You might want to make the tank as tailored for the P. Nigrolineatus as possible and then ...

I have four P. Nigrolineatus and all of them have gone from 1.5 in to over 6 in in the last five months. So word to the wise if they eat it they will grow.

As it seems there is no info on this subject, but I am still interested in any parallels that people may make between the P. Nigrolineatus and other plecs or theorys on how to breed the P. Nigrolineatus.

I am wanting anyone who has any knowledge of how to breed or possibly breed the Panaque Nigrolineatus.